The following image shows a portion of an electron photomicrograph of a chloroplast - VCE - SSCE Biology - Question 18 - 2006 - Paper 1
Question 18
The following image shows a portion of an electron photomicrograph of a chloroplast.
Light-dependent reactions occur in region P and the Calvin cycle reactions occ... show full transcript
Worked Solution & Example Answer:The following image shows a portion of an electron photomicrograph of a chloroplast - VCE - SSCE Biology - Question 18 - 2006 - Paper 1
Step 1
A. oxygen is an input to reactions at P.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Oxygen is actually a product of the light-dependent reactions in region P, not an input. Therefore, this statement is not accurate.
Step 2
B. carbon dioxide is an input to reactions at Q.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Carbon dioxide is indeed an input for the Calvin cycle reactions that occur in region Q, as it is utilized to form glucose during photosynthesis.
Step 3
C. chlorophyll is essential for reactions that occur at Q.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
While chlorophyll is crucial for capturing light energy in the light-dependent reactions, it is not directly essential for the reactions in the Calvin cycle at Q, which primarily involves using the products from the light reactions.
Step 4
D. ADP produced during the events at P is used by events at Q.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
ADP is indeed produced during the light-dependent reactions at P and is then used in the Calvin cycle reactions at Q to help form ATP as part of the energy cycle in photosynthesis.
